Nut-lock.



No. 738,660.4 PATBNTED SEPT. a, 190s.;

C. H. CHITTUM. NUT LOCK.

APPLICATION FILED'DEO. 27, 1902. N0 MODEL.

'CHARLES HENRY CHITTUM,

Patented September 8, 1903.

PATENT UEEICE.

ORLEXINGTON, VIRGINIA.

NUT-L ocK.

SPECIFICATION forming part of Letters Patent No. 738,660,dated September8, 1903i. Application tiled December 27, 1902. Serial No. 186,814. (Nomodel.)

`To all whom t may concern:

Be it known thatl, CHARLES HENRY CHIT- TUM, a citizen of the UnitedStates, residing at Lexington, in the county of Rockbridge and State ofVirginia, have invented a new and 4 useful N ut-Lock, of which thefollowing is a specication.

This invention relates to devices for preventing nuts turning backwardfrom the bolts or other structures or members with which they areengaged, more particularly to the nuts upon vehicle-axles, and has forits object to simplify and cheapen the construction of such devices andalso to increase the etticiency and operativeness; and the inventionconsists in certain novel features of the construction,as hereinaftershown and described, and specified in the claims. In the drawingsillustrative of the invention, in which corresponding parts are denotedby like designatingcharacters, Figure' l is a longitudinal sectionalelevation of the improvement applied. Fig. 2 is a detached perspectiveView of the nut. Fig. 3 is a detached perspective view of the screw-studand locking-latch. l

This device is more particularly applicable to the axles of large lumberor farm wagons, and in the drawings for the purpose of illustration itis shown applied to a portion of an axle and hub of a vehicle of thisclass, representing the wooden axle end, 1l the skein, l2 thehub-sleeve, 13 the hub, 14 the hubband, and the axle-nut, all of theusual construction. The only change' required to adapt the improveddevice to the axle and hub is to form a radiating channel 16 in theouter end of the axle-skein 1l and a similar channel 17 in the face ofthe nut, the two channels adapted to register when the nut is setup intoits operative position. In vehicles of this classthe skein 11 issecuredin position upon the `wooden portion 10 of the axle by alag-screw passed through the outer end of the skein, and in applying theimproved device this lag-screw (represented at 18) is utilized byforming thereon an enmember 18 and operating against the rear end llarged slotted head l9 and movably connecting into this slot, as by apivot 20, a latch 21, the free end of the latch adapted to be seated inthe channels 16 17 when in their alined position, and thus electivelylock the nut fast to the axle-skein, as will be obvious.

A spring 22 will be connected to the screw of the latch to maintain itnormally in yieldable engagement with the channels topreventaccidentaldisplacement. By thissimple means a very eective andconvenient lock is provided, which will prevent the nut Vfrom turningbackward from the skein, while at the same time it is easily releasablewhen the Wheel is to be removed.

The device may be formed to fit -any vevicle of this class and may bemodified in minor particulars without departure from the principle ofthe invention.

Having thus described the invention, what I claim is- 1. The combinationwith an axle having a threaded extremity and with a radiating channel inthe outer end, a nut engaging said threaded extremity and having a`channel adapted to register with the channel in said axle end, ascrew-stud inserted into said axle end and having a laterally-extendedhead, and a latch movably connected in said head and engaging saidchannels, substantially as described.

2. The combination with an axle having a threaded extremity and with aradiating channel in the outer end, a nut engaging said threadedextremity and having a channel adapted to register with the channel in.said axle end, a screw-stud inserted into said axle l end and having alaterally-extended head and a spring operating to maintain said latch inyieldable engagement with said channels substantially as described. l t

In testimony that I claim the foregoing-as my own I have hereto aftixedmy signature Vin the presence of two witnesses.

CHARLES HENRY Cl-IITTUM. Witnesses:

W. T. SHIELDS, JN0. McD.Ross.

